Hi all,
Sorry to disturb but I want to know how can I overlap two cameras with two
different scenes?
Here the picture is the result I tried with CompositeViewer, but this is not
exactly what I want. As you can see, the names of houses are displayed in one
view while buildings in another view.
I have one scenegraph containing only buildings and another one containing only
house names. Due to some specific needs, I can not put them under the same
camera.
So I have one camera adding houses as children and meanwhile one camera adding
house names as children. So how can I overlap them in one view？
I tried like this but failed, I don't have a good master of OSG theory part :(
Code:
osgViewer::Viewer viewer;
//is this a right way to add houses to one camera?
viewer.getCamera()->addChild(houses);
//here I want to construct a camera, with all the parameters the same as the
viewer.getCamera(), so that they can be overlaped. Is this a right way?
osg::Camera* myCam = new osg::Camera;
myCam->setProjectionMatrix(viewer.getCamera()->getProjectionMatrix());
myCam->setViewMatrix(viewer.getCamera()->getViewMatrix());
myCam->setViewport(viewer.getCamera()->getViewport());
myCam->addChild(house names);
myCam->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
viewer.addSlave(myCam, false);
And I don't know how to make them visualized.
I searched for answer in older posts, and I found the "Producer" example, I
don't have the Producer version. Then there was suggestion of looking at
osgdistortion example where there are multiple cameras. However these multiple
cameras share the same scene dataset, simple by
viewer.assignSceneDataToCameras(). But I don't use the same dataset.
I don't know if I make myself clear here.
So huge thanks in advance for any reply:)
Fan
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=53788#53788
Attachments:
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http://forum.openscenegraph.org//files/result_212.png
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